tests: move test source to vpp/test

- Generate copyright year and version
  instead of using hard-coded data

Type: refactor

Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Change-Id: I6058f5025323b3aa483f5df4a2c4371e27b5914e

1 files changed, 0 insertions, 975 deletions

diff --git a/src/plugins/cnat/test/test_cnat.py b/src/plugins/cnat/test/test_cnat.py
deleted file mode 100644
index ff4c44033cb..00000000000
--- a/src/plugins/cnat/test/test_cnat.py
+++ /dev/null
@@ -1,975 +0,0 @@
-#!/usr/bin/env python3
-
-import unittest
-
-from framework import VppTestCase, VppTestRunner
-from vpp_ip import DpoProto, INVALID_INDEX
-from itertools import product
-
-from scapy.packet import Raw
-from scapy.layers.l2 import Ether
-from scapy.layers.inet import IP, UDP, TCP, ICMP
-from scapy.layers.inet import IPerror, TCPerror, UDPerror, ICMPerror
-from scapy.layers.inet6 import IPv6, IPerror6, ICMPv6DestUnreach
-from scapy.layers.inet6 import ICMPv6EchoRequest, ICMPv6EchoReply
-
-import struct
-
-from ipaddress import ip_address, ip_network, \
-    IPv4Address, IPv6Address, IPv4Network, IPv6Network
-
-from vpp_object import VppObject
-from vpp_papi import VppEnum
-
-N_PKTS = 15
-
-
-class Ep(object):
-    """ CNat endpoint """
-
-    def __init__(self, ip=None, port=0, l4p=TCP,
-                 sw_if_index=INVALID_INDEX, is_v6=False):
-        self.ip = ip
-        if ip is None:
-            self.ip = "::" if is_v6 else "0.0.0.0"
-        self.port = port
-        self.l4p = l4p
-        self.sw_if_index = sw_if_index
-        if is_v6:
-            self.if_af = VppEnum.vl_api_address_family_t.ADDRESS_IP6
-        else:
-            self.if_af = VppEnum.vl_api_address_family_t.ADDRESS_IP4
-
-    def encode(self):
-        return {'addr': self.ip,
-                'port': self.port,
-                'sw_if_index': self.sw_if_index,
-                'if_af': self.if_af}
-
-    @classmethod
-    def from_pg(cls, pg, is_v6=False):
-        if pg is None:
-            return cls(is_v6=is_v6)
-        else:
-            return cls(sw_if_index=pg.sw_if_index, is_v6=is_v6)
-
-    @property
-    def isV6(self):
-        return ":" in self.ip
-
-    def __str__(self):
-        return ("%s:%d" % (self.ip, self.port))
-
-
-class EpTuple(object):
-    """ CNat endpoint """
-
-    def __init__(self, src, dst):
-        self.src = src
-        self.dst = dst
-
-    def encode(self):
-        return {'src_ep': self.src.encode(),
-                'dst_ep': self.dst.encode()}
-
-    def __str__(self):
-        return ("%s->%s" % (self.src, self.dst))
-
-
-class VppCNatTranslation(VppObject):
-
-    def __init__(self, test, iproto, vip, paths):
-        self._test = test
-        self.vip = vip
-        self.iproto = iproto
-        self.paths = paths
-        self.encoded_paths = []
-        for path in self.paths:
-            self.encoded_paths.append(path.encode())
-
-    def __str__(self):
-        return ("%s %s %s" % (self.vip, self.iproto, self.paths))
-
-    @property
-    def vl4_proto(self):
-        ip_proto = VppEnum.vl_api_ip_proto_t
-        return {
-            UDP: ip_proto.IP_API_PROTO_UDP,
-            TCP: ip_proto.IP_API_PROTO_TCP,
-        }[self.iproto]
-
-    def add_vpp_config(self):
-        r = self._test.vapi.cnat_translation_update(
-            {'vip': self.vip.encode(),
-             'ip_proto': self.vl4_proto,
-             'n_paths': len(self.paths),
-             'paths': self.encoded_paths})
-        self._test.registry.register(self, self._test.logger)
-        self.id = r.id
-
-    def modify_vpp_config(self, paths):
-        self.paths = paths
-        self.encoded_paths = []
-        for path in self.paths:
-            self.encoded_paths.append(path.encode())
-
-        r = self._test.vapi.cnat_translation_update(
-            {'vip': self.vip.encode(),
-             'ip_proto': self.vl4_proto,
-             'n_paths': len(self.paths),
-             'paths': self.encoded_paths})
-        self._test.registry.register(self, self._test.logger)
-
-    def remove_vpp_config(self):
-        self._test.vapi.cnat_translation_del(id=self.id)
-
-    def query_vpp_config(self):
-        for t in self._test.vapi.cnat_translation_dump():
-            if self.id == t.translation.id:
-                return t.translation
-        return None
-
-    def object_id(self):
-        return ("cnat-translation-%s" % (self.vip))
-
-    def get_stats(self):
-        c = self._test.statistics.get_counter("/net/cnat-translation")
-        return c[0][self.id]
-
-
-class TestCNatTranslation(VppTestCase):
-    """ CNat Translation """
-    extra_vpp_punt_config = ["cnat", "{",
-                             "session-db-buckets", "64",
-                             "session-cleanup-timeout", "0.1",
-                             "session-max-age", "1",
-                             "tcp-max-age", "1",
-                             "scanner", "off", "}"]
-
-    @classmethod
-    def setUpClass(cls):
-        super(TestCNatTranslation, cls).setUpClass()
-
-    @classmethod
-    def tearDownClass(cls):
-        super(TestCNatTranslation, cls).tearDownClass()
-
-    def setUp(self):
-        super(TestCNatTranslation, self).setUp()
-
-        self.create_pg_interfaces(range(3))
-
-        for i in self.pg_interfaces:
-            i.admin_up()
-            i.config_ip4()
-            i.resolve_arp()
-            i.config_ip6()
-            i.resolve_ndp()
-
-    def tearDown(self):
-        for i in self.pg_interfaces:
-            i.unconfig_ip4()
-            i.unconfig_ip6()
-            i.admin_down()
-        super(TestCNatTranslation, self).tearDown()
-
-    def cnat_create_translation(self, vip, nbr):
-        ip_v = "ip6" if vip.isV6 else "ip4"
-        dep = Ep(getattr(self.pg1.remote_hosts[nbr], ip_v), 4000 + nbr)
-        sep = Ep("::", 0) if vip.isV6 else Ep("0.0.0.0", 0)
-        t1 = VppCNatTranslation(
-            self, vip.l4p, vip,
-            [EpTuple(sep, dep), EpTuple(sep, dep)])
-        t1.add_vpp_config()
-        return t1
-
-    def cnat_test_translation(self, t1, nbr, sports, isV6=False):
-        ip_v = "ip6" if isV6 else "ip4"
-        ip_class = IPv6 if isV6 else IP
-        vip = t1.vip
-
-        #
-        # Flows
-        #
-        for src in self.pg0.remote_hosts:
-            for sport in sports:
-                # from client to vip
-                p1 = (Ether(dst=self.pg0.local_mac,
-                            src=src.mac) /
-                      ip_class(src=getattr(src, ip_v), dst=vip.ip) /
-                      vip.l4p(sport=sport, dport=vip.port) /
-                      Raw())
-
-                self.vapi.cli("trace add pg-input 1")
-                rxs = self.send_and_expect(self.pg0,
-                                           p1 * N_PKTS,
-                                           self.pg1)
-                self.logger.info(self.vapi.cli("show trace max 1"))
-
-                for rx in rxs:
-                    self.assert_packet_checksums_valid(rx)
-                    self.assertEqual(
-                        rx[ip_class].dst,
-                        getattr(self.pg1.remote_hosts[nbr], ip_v))
-                    self.assertEqual(rx[vip.l4p].dport, 4000 + nbr)
-                    self.assertEqual(
-                        rx[ip_class].src,
-                        getattr(src, ip_v))
-                    self.assertEqual(rx[vip.l4p].sport, sport)
-
-                # from vip to client
-                p1 = (Ether(dst=self.pg1.local_mac,
-                            src=self.pg1.remote_mac) /
-                      ip_class(src=getattr(
-                          self.pg1.remote_hosts[nbr],
-                          ip_v),
-                          dst=getattr(src, ip_v)) /
-                      vip.l4p(sport=4000 + nbr, dport=sport) /
-                      Raw())
-
-                rxs = self.send_and_expect(self.pg1,
-                                           p1 * N_PKTS,
-                                           self.pg0)
-
-                for rx in rxs:
-                    self.assert_packet_checksums_valid(rx)
-                    self.assertEqual(
-                        rx[ip_class].dst,
-                        getattr(src, ip_v))
-                    self.assertEqual(rx[vip.l4p].dport, sport)
-                    self.assertEqual(rx[ip_class].src, vip.ip)
-                    self.assertEqual(rx[vip.l4p].sport, vip.port)
-
-                #
-                # packets to the VIP that do not match a
-                # translation are dropped
-                #
-                p1 = (Ether(dst=self.pg0.local_mac,
-                            src=src.mac) /
-                      ip_class(src=getattr(src, ip_v), dst=vip.ip) /
-                      vip.l4p(sport=sport, dport=6666) /
-                      Raw())
-
-                self.send_and_assert_no_replies(self.pg0,
-                                                p1 * N_PKTS,
-                                                self.pg1)
-
-                #
-                # packets from the VIP that do not match a
-                # session are forwarded
-                #
-                p1 = (Ether(dst=self.pg1.local_mac,
-                            src=self.pg1.remote_mac) /
-                      ip_class(src=getattr(
-                          self.pg1.remote_hosts[nbr],
-                          ip_v),
-                          dst=getattr(src, ip_v)) /
-                      vip.l4p(sport=6666, dport=sport) /
-                      Raw())
-
-                rxs = self.send_and_expect(self.pg1,
-                                           p1 * N_PKTS,
-                                           self.pg0)
-
-    def cnat_test_translation_update(self, t1, sports, isV6=False):
-        ip_v = "ip6" if isV6 else "ip4"
-        ip_class = IPv6 if isV6 else IP
-        vip = t1.vip
-
-        #
-        # modify the translation to use a different backend
-        #
-        dep = Ep(getattr(self.pg2, 'remote_' + ip_v), 5000)
-        sep = Ep("::", 0) if isV6 else Ep("0.0.0.0", 0)
-        t1.modify_vpp_config([EpTuple(sep, dep)])
-
-        #
-        # existing flows follow the old path
-        #
-        for src in self.pg0.remote_hosts:
-            for sport in sports:
-                # from client to vip
-                p1 = (Ether(dst=self.pg0.local_mac,
-                            src=src.mac) /
-                      ip_class(src=getattr(src, ip_v), dst=vip.ip) /
-                      vip.l4p(sport=sport, dport=vip.port) /
-                      Raw())
-
-                rxs = self.send_and_expect(self.pg0,
-                                           p1 * N_PKTS,
-                                           self.pg1)
-
-        #
-        # new flows go to the new backend
-        #
-        for src in self.pg0.remote_hosts:
-            p1 = (Ether(dst=self.pg0.local_mac,
-                        src=src.mac) /
-                  ip_class(src=getattr(src, ip_v), dst=vip.ip) /
-                  vip.l4p(sport=9999, dport=vip.port) /
-                  Raw())
-
-            rxs = self.send_and_expect(self.pg0,
-                                       p1 * N_PKTS,
-                                       self.pg2)
-
-    def cnat_translation(self, vips, isV6=False):
-        """ CNat Translation """
-
-        ip_class = IPv6 if isV6 else IP
-        ip_v = "ip6" if isV6 else "ip4"
-        sports = [1234, 1233]
-
-        #
-        # turn the scanner off whilst testing otherwise sessions
-        # will time out
-        #
-        self.vapi.cli("test cnat scanner off")
-
-        sessions = self.vapi.cnat_session_dump()
-
-        trs = []
-        for nbr, vip in enumerate(vips):
-            trs.append(self.cnat_create_translation(vip, nbr))
-
-        self.logger.info(self.vapi.cli("sh cnat client"))
-        self.logger.info(self.vapi.cli("sh cnat translation"))
-
-        #
-        # translations
-        #
-        for nbr, vip in enumerate(vips):
-            self.cnat_test_translation(trs[nbr], nbr, sports, isV6=isV6)
-            self.cnat_test_translation_update(trs[nbr], sports, isV6=isV6)
-            if isV6:
-                self.logger.info(self.vapi.cli(
-                    "sh ip6 fib %s" % self.pg0.remote_ip6))
-            else:
-                self.logger.info(self.vapi.cli(
-                    "sh ip fib %s" % self.pg0.remote_ip4))
-            self.logger.info(self.vapi.cli("sh cnat session verbose"))
-
-        #
-        # turn the scanner back on and wait until the sessions
-        # all disapper
-        #
-        self.vapi.cli("test cnat scanner on")
-
-        n_tries = 0
-        sessions = self.vapi.cnat_session_dump()
-        while (len(sessions) and n_tries < 100):
-            n_tries += 1
-            sessions = self.vapi.cnat_session_dump()
-            self.sleep(2)
-            self.logger.info(self.vapi.cli("show cnat session verbose"))
-
-        self.assertTrue(n_tries < 100)
-        self.vapi.cli("test cnat scanner off")
-
-        #
-        # load some flows again and purge
-        #
-        for vip in vips:
-            for src in self.pg0.remote_hosts:
-                for sport in sports:
-                    # from client to vip
-                    p1 = (Ether(dst=self.pg0.local_mac,
-                                src=src.mac) /
-                          ip_class(src=getattr(src, ip_v), dst=vip.ip) /
-                          vip.l4p(sport=sport, dport=vip.port) /
-                          Raw())
-                    self.send_and_expect(self.pg0,
-                                         p1 * N_PKTS,
-                                         self.pg2)
-
-        for tr in trs:
-            tr.remove_vpp_config()
-
-        self.assertTrue(self.vapi.cnat_session_dump())
-        self.vapi.cnat_session_purge()
-        self.assertFalse(self.vapi.cnat_session_dump())
-
-    def test_icmp(self):
-        vips = [
-            Ep("30.0.0.1", 5555),
-            Ep("30.0.0.2", 5554),
-            Ep("30.0.0.2", 5553, UDP),
-            Ep("30::1", 6666),
-            Ep("30::2", 5553, UDP),
-        ]
-        sport = 1234
-
-        self.pg0.generate_remote_hosts(len(vips))
-        self.pg0.configure_ipv6_neighbors()
-        self.pg0.configure_ipv4_neighbors()
-
-        self.pg1.generate_remote_hosts(len(vips))
-        self.pg1.configure_ipv6_neighbors()
-        self.pg1.configure_ipv4_neighbors()
-
-        self.vapi.cli("test cnat scanner off")
-        trs = []
-        for nbr, vip in enumerate(vips):
-            trs.append(self.cnat_create_translation(vip, nbr))
-
-        self.logger.info(self.vapi.cli("sh cnat client"))
-        self.logger.info(self.vapi.cli("sh cnat translation"))
-
-        for nbr, vip in enumerate(vips):
-            if vip.isV6:
-                client_addr = self.pg0.remote_hosts[0].ip6
-                remote_addr = self.pg1.remote_hosts[nbr].ip6
-                remote2_addr = self.pg2.remote_hosts[0].ip6
-            else:
-                client_addr = self.pg0.remote_hosts[0].ip4
-                remote_addr = self.pg1.remote_hosts[nbr].ip4
-                remote2_addr = self.pg2.remote_hosts[0].ip4
-            IP46 = IPv6 if vip.isV6 else IP
-            # from client to vip
-            p1 = (Ether(dst=self.pg0.local_mac,
-                        src=self.pg0.remote_hosts[0].mac) /
-                  IP46(src=client_addr, dst=vip.ip) /
-                  vip.l4p(sport=sport, dport=vip.port) /
-                  Raw())
-
-            rxs = self.send_and_expect(self.pg0,
-                                       p1 * N_PKTS,
-                                       self.pg1)
-
-            for rx in rxs:
-                self.assert_packet_checksums_valid(rx)
-                self.assertEqual(rx[IP46].dst, remote_addr)
-                self.assertEqual(rx[vip.l4p].dport, 4000 + nbr)
-                self.assertEqual(rx[IP46].src, client_addr)
-                self.assertEqual(rx[vip.l4p].sport, sport)
-
-            InnerIP = rxs[0][IP46]
-
-            ICMP46 = ICMPv6DestUnreach if vip.isV6 else ICMP
-            ICMPelem = ICMPv6DestUnreach(code=1) if vip.isV6 else ICMP(type=11)
-            # from vip to client, ICMP error
-            p1 = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
-                  IP46(src=remote_addr, dst=client_addr) /
-                  ICMPelem / InnerIP)
-
-            rxs = self.send_and_expect(self.pg1,
-                                       p1 * N_PKTS,
-                                       self.pg0)
-
-            TCPUDPError = TCPerror if vip.l4p == TCP else UDPerror
-            IP46error = IPerror6 if vip.isV6 else IPerror
-            for rx in rxs:
-                self.assert_packet_checksums_valid(rx)
-                self.assertEqual(rx[IP46].src, vip.ip)
-                self.assertEqual(rx[ICMP46][IP46error].src, client_addr)
-                self.assertEqual(rx[ICMP46][IP46error].dst, vip.ip)
-                self.assertEqual(rx[ICMP46][IP46error]
-                                 [TCPUDPError].sport, sport)
-                self.assertEqual(rx[ICMP46][IP46error]
-                                 [TCPUDPError].dport, vip.port)
-
-            # from other remote to client, ICMP error
-            # outside shouldn't be NAT-ed
-            p1 = (Ether(dst=self.pg2.local_mac, src=self.pg2.remote_mac) /
-                  IP46(src=remote2_addr, dst=client_addr) /
-                  ICMPelem / InnerIP)
-
-            rxs = self.send_and_expect(self.pg1,
-                                       p1 * N_PKTS,
-                                       self.pg0)
-
-            TCPUDPError = TCPerror if vip.l4p == TCP else UDPerror
-            IP46error = IPerror6 if vip.isV6 else IPerror
-            for rx in rxs:
-                self.assert_packet_checksums_valid(rx)
-                self.assertEqual(rx[IP46].src, remote2_addr)
-                self.assertEqual(rx[ICMP46][IP46error].src, client_addr)
-                self.assertEqual(rx[ICMP46][IP46error].dst, vip.ip)
-                self.assertEqual(rx[ICMP46][IP46error]
-                                 [TCPUDPError].sport, sport)
-                self.assertEqual(rx[ICMP46][IP46error]
-                                 [TCPUDPError].dport, vip.port)
-
-        self.vapi.cnat_session_purge()
-
-    def test_cnat6(self):
-        # """ CNat Translation ipv6 """
-        vips = [
-            Ep("30::1", 5555),
-            Ep("30::2", 5554),
-            Ep("30::2", 5553, UDP),
-        ]
-
-        self.pg0.generate_remote_hosts(len(vips))
-        self.pg0.configure_ipv6_neighbors()
-        self.pg1.generate_remote_hosts(len(vips))
-        self.pg1.configure_ipv6_neighbors()
-
-        self.cnat_translation(vips, isV6=True)
-
-    def test_cnat4(self):
-        # """ CNat Translation ipv4 """
-
-        vips = [
-            Ep("30.0.0.1", 5555),
-            Ep("30.0.0.2", 5554),
-            Ep("30.0.0.2", 5553, UDP),
-        ]
-
-        self.pg0.generate_remote_hosts(len(vips))
-        self.pg0.configure_ipv4_neighbors()
-        self.pg1.generate_remote_hosts(len(vips))
-        self.pg1.configure_ipv4_neighbors()
-
-        self.cnat_translation(vips)
-
-
-class TestCNatSourceNAT(VppTestCase):
-    """ CNat Source NAT """
-    extra_vpp_punt_config = ["cnat", "{",
-                             "session-cleanup-timeout", "0.1",
-                             "session-max-age", "1",
-                             "tcp-max-age", "1",
-                             "scanner", "off", "}"]
-
-    @classmethod
-    def setUpClass(cls):
-        super(TestCNatSourceNAT, cls).setUpClass()
-
-    @classmethod
-    def tearDownClass(cls):
-        super(TestCNatSourceNAT, cls).tearDownClass()
-
-    def setUp(self):
-        super(TestCNatSourceNAT, self).setUp()
-
-        self.create_pg_interfaces(range(3))
-
-        for i in self.pg_interfaces:
-            i.admin_up()
-            i.config_ip4()
-            i.resolve_arp()
-            i.config_ip6()
-            i.resolve_ndp()
-
-        self.pg0.configure_ipv6_neighbors()
-        self.pg0.configure_ipv4_neighbors()
-        self.pg1.generate_remote_hosts(2)
-        self.pg1.configure_ipv4_neighbors()
-        self.pg1.configure_ipv6_neighbors()
-
-        self.vapi.cnat_set_snat_addresses(
-            snat_ip4=self.pg2.remote_hosts[0].ip4,
-            snat_ip6=self.pg2.remote_hosts[0].ip6,
-            sw_if_index=INVALID_INDEX)
-        self.vapi.feature_enable_disable(
-            enable=1,
-            arc_name="ip6-unicast",
-            feature_name="cnat-snat-ip6",
-            sw_if_index=self.pg0.sw_if_index)
-        self.vapi.feature_enable_disable(
-            enable=1,
-            arc_name="ip4-unicast",
-            feature_name="cnat-snat-ip4",
-            sw_if_index=self.pg0.sw_if_index)
-
-        policie_tbls = VppEnum.vl_api_cnat_snat_policy_table_t
-        self.vapi.cnat_set_snat_policy(
-            policy=VppEnum.vl_api_cnat_snat_policies_t.CNAT_POLICY_IF_PFX)
-        for i in self.pg_interfaces:
-            self.vapi.cnat_snat_policy_add_del_if(
-                sw_if_index=i.sw_if_index, is_add=1,
-                table=policie_tbls.CNAT_POLICY_INCLUDE_V6)
-            self.vapi.cnat_snat_policy_add_del_if(
-                sw_if_index=i.sw_if_index, is_add=1,
-                table=policie_tbls.CNAT_POLICY_INCLUDE_V4)
-
-    def tearDown(self):
-        self.vapi.cnat_session_purge()
-        for i in self.pg_interfaces:
-            i.unconfig_ip4()
-            i.unconfig_ip6()
-            i.admin_down()
-        super(TestCNatSourceNAT, self).tearDown()
-
-    def test_snat_v6(self):
-        # """ CNat Source Nat v6 """
-        self.sourcenat_test_tcp_udp_conf(TCP, isV6=True)
-        self.sourcenat_test_tcp_udp_conf(UDP, isV6=True)
-        self.sourcenat_test_icmp_err_conf(isV6=True)
-        self.sourcenat_test_icmp_echo6_conf()
-
-    def test_snat_v4(self):
-        # """ CNat Source Nat v4 """
-        self.sourcenat_test_tcp_udp_conf(TCP)
-        self.sourcenat_test_tcp_udp_conf(UDP)
-        self.sourcenat_test_icmp_err_conf()
-        self.sourcenat_test_icmp_echo4_conf()
-
-    def sourcenat_test_icmp_echo6_conf(self):
-        sports = [1234, 1235]
-        dports = [6661, 6662]
-
-        for nbr, remote_host in enumerate(self.pg1.remote_hosts):
-            client_addr = self.pg0.remote_hosts[0].ip6
-            remote_addr = self.pg1.remote_hosts[nbr].ip6
-            src_nat_addr = self.pg2.remote_hosts[0].ip6
-
-            # ping from pods to outside network
-            p1 = (
-                Ether(dst=self.pg0.local_mac,
-                      src=self.pg0.remote_hosts[0].mac) /
-                IPv6(src=client_addr, dst=remote_addr) /
-                ICMPv6EchoRequest(id=0xfeed) /
-                Raw())
-
-            rxs = self.send_and_expect(
-                self.pg0,
-                p1 * N_PKTS,
-                self.pg1)
-
-            for rx in rxs:
-                self.assertEqual(rx[IPv6].src, src_nat_addr)
-                self.assert_packet_checksums_valid(rx)
-
-            received_id = rx[0][ICMPv6EchoRequest].id
-            # ping reply from outside to pods
-            p2 = (
-                Ether(dst=self.pg1.local_mac,
-                      src=self.pg1.remote_hosts[nbr].mac) /
-                IPv6(src=remote_addr, dst=src_nat_addr) /
-                ICMPv6EchoReply(id=received_id))
-            rxs = self.send_and_expect(
-                self.pg1,
-                p2 * N_PKTS,
-                self.pg0)
-
-            for rx in rxs:
-                self.assert_packet_checksums_valid(rx)
-                self.assertEqual(rx[IPv6].src, remote_addr)
-                self.assertEqual(rx[ICMPv6EchoReply].id, 0xfeed)
-
-    def sourcenat_test_icmp_echo4_conf(self):
-        sports = [1234, 1235]
-        dports = [6661, 6662]
-
-        for nbr, remote_host in enumerate(self.pg1.remote_hosts):
-            IP46 = IP
-            client_addr = self.pg0.remote_hosts[0].ip4
-            remote_addr = self.pg1.remote_hosts[nbr].ip4
-            src_nat_addr = self.pg2.remote_hosts[0].ip4
-
-            # ping from pods to outside network
-            p1 = (
-                Ether(dst=self.pg0.local_mac,
-                      src=self.pg0.remote_hosts[0].mac) /
-                IP46(src=client_addr, dst=remote_addr) /
-                ICMP(type=8, id=0xfeed) /
-                Raw())
-
-            rxs = self.send_and_expect(
-                self.pg0,
-                p1 * N_PKTS,
-                self.pg1)
-
-            for rx in rxs:
-                self.assertEqual(rx[IP46].src, src_nat_addr)
-                self.assert_packet_checksums_valid(rx)
-
-            received_id = rx[0][ICMP].id
-            # ping reply from outside to pods
-            p2 = (
-                Ether(dst=self.pg1.local_mac,
-                      src=self.pg1.remote_hosts[nbr].mac) /
-                IP46(src=remote_addr, dst=src_nat_addr) /
-                ICMP(type=0, id=received_id))
-            rxs = self.send_and_expect(
-                self.pg1,
-                p2 * N_PKTS,
-                self.pg0)
-
-            for rx in rxs:
-                self.assert_packet_checksums_valid(rx)
-                self.assertEqual(rx[IP46].src, remote_addr)
-                self.assertEqual(rx[ICMP].id, 0xfeed)
-
-    def sourcenat_test_icmp_err_conf(self, isV6=False):
-        sports = [1234, 1235]
-        dports = [6661, 6662]
-
-        for nbr, remote_host in enumerate(self.pg1.remote_hosts):
-            if isV6:
-                IP46 = IPv6
-                client_addr = self.pg0.remote_hosts[0].ip6
-                remote_addr = self.pg1.remote_hosts[nbr].ip6
-                src_nat_addr = self.pg2.remote_hosts[0].ip6
-                ICMP46 = ICMPv6DestUnreach
-                ICMPelem = ICMPv6DestUnreach(code=1)
-                IP46error = IPerror6
-            else:
-                IP46 = IP
-                client_addr = self.pg0.remote_hosts[0].ip4
-                remote_addr = self.pg1.remote_hosts[nbr].ip4
-                src_nat_addr = self.pg2.remote_hosts[0].ip4
-                IP46error = IPerror
-                ICMP46 = ICMP
-                ICMPelem = ICMP(type=11)
-
-            # from pods to outside network
-            p1 = (
-                Ether(dst=self.pg0.local_mac,
-                      src=self.pg0.remote_hosts[0].mac) /
-                IP46(src=client_addr, dst=remote_addr) /
-                TCP(sport=sports[nbr], dport=dports[nbr]) /
-                Raw())
-
-            rxs = self.send_and_expect(
-                self.pg0,
-                p1 * N_PKTS,
-                self.pg1)
-            for rx in rxs:
-                self.assert_packet_checksums_valid(rx)
-                self.assertEqual(rx[IP46].dst, remote_addr)
-                self.assertEqual(rx[TCP].dport, dports[nbr])
-                self.assertEqual(rx[IP46].src, src_nat_addr)
-                sport = rx[TCP].sport
-
-            InnerIP = rxs[0][IP46]
-            # from outside to pods, ICMP error
-            p2 = (
-                Ether(dst=self.pg1.local_mac,
-                      src=self.pg1.remote_hosts[nbr].mac) /
-                IP46(src=remote_addr, dst=src_nat_addr) /
-                ICMPelem / InnerIP)
-
-            rxs = self.send_and_expect(
-                self.pg1,
-                p2 * N_PKTS,
-                self.pg0)
-
-            for rx in rxs:
-                self.assert_packet_checksums_valid(rx)
-                self.assertEqual(rx[IP46].src, remote_addr)
-                self.assertEqual(rx[ICMP46][IP46error].src, client_addr)
-                self.assertEqual(rx[ICMP46][IP46error].dst, remote_addr)
-                self.assertEqual(rx[ICMP46][IP46error]
-                                 [TCPerror].sport, sports[nbr])
-                self.assertEqual(rx[ICMP46][IP46error]
-                                 [TCPerror].dport, dports[nbr])
-
-    def sourcenat_test_tcp_udp_conf(self, l4p, isV6=False):
-        sports = [1234, 1235]
-        dports = [6661, 6662]
-
-        for nbr, remote_host in enumerate(self.pg1.remote_hosts):
-            if isV6:
-                IP46 = IPv6
-                client_addr = self.pg0.remote_hosts[0].ip6
-                remote_addr = self.pg1.remote_hosts[nbr].ip6
-                src_nat_addr = self.pg2.remote_hosts[0].ip6
-                exclude_prefix = ip_network(
-                    "%s/100" % remote_addr, strict=False)
-            else:
-                IP46 = IP
-                client_addr = self.pg0.remote_hosts[0].ip4
-                remote_addr = self.pg1.remote_hosts[nbr].ip4
-                src_nat_addr = self.pg2.remote_hosts[0].ip4
-                exclude_prefix = ip_network(
-                    "%s/16" % remote_addr, strict=False)
-            # from pods to outside network
-            p1 = (
-                Ether(dst=self.pg0.local_mac,
-                      src=self.pg0.remote_hosts[0].mac) /
-                IP46(src=client_addr, dst=remote_addr) /
-                l4p(sport=sports[nbr], dport=dports[nbr]) /
-                Raw())
-
-            self.vapi.cli("trace add pg-input 1")
-            rxs = self.send_and_expect(
-                self.pg0,
-                p1 * N_PKTS,
-                self.pg1)
-            self.logger.info(self.vapi.cli("show trace max 1"))
-
-            for rx in rxs:
-                self.assert_packet_checksums_valid(rx)
-                self.assertEqual(rx[IP46].dst, remote_addr)
-                self.assertEqual(rx[l4p].dport, dports[nbr])
-                self.assertEqual(rx[IP46].src, src_nat_addr)
-                sport = rx[l4p].sport
-
-            # from outside to pods
-            p2 = (
-                Ether(dst=self.pg1.local_mac,
-                      src=self.pg1.remote_hosts[nbr].mac) /
-                IP46(src=remote_addr, dst=src_nat_addr) /
-                l4p(sport=dports[nbr], dport=sport) /
-                Raw())
-
-            rxs = self.send_and_expect(
-                self.pg1,
-                p2 * N_PKTS,
-                self.pg0)
-
-            for rx in rxs:
-                self.assert_packet_checksums_valid(rx)
-                self.assertEqual(rx[IP46].dst, client_addr)
-                self.assertEqual(rx[l4p].dport, sports[nbr])
-                self.assertEqual(rx[l4p].sport, dports[nbr])
-                self.assertEqual(rx[IP46].src, remote_addr)
-
-            # add remote host to exclude list
-            self.vapi.cnat_snat_policy_add_del_exclude_pfx(
-                prefix=exclude_prefix, is_add=1)
-            self.vapi.cnat_session_purge()
-
-            rxs = self.send_and_expect(
-                self.pg0,
-                p1 * N_PKTS,
-                self.pg1)
-            for rx in rxs:
-                self.assert_packet_checksums_valid(rx)
-                self.assertEqual(rx[IP46].dst, remote_addr)
-                self.assertEqual(rx[l4p].dport, dports[nbr])
-                self.assertEqual(rx[IP46].src, client_addr)
-
-            # remove remote host from exclude list
-            self.vapi.cnat_snat_policy_add_del_exclude_pfx(
-                prefix=exclude_prefix, is_add=0)
-            self.vapi.cnat_session_purge()
-
-            rxs = self.send_and_expect(
-                self.pg0,
-                p1 * N_PKTS,
-                self.pg1)
-
-            for rx in rxs:
-                self.assert_packet_checksums_valid(rx)
-                self.assertEqual(rx[IP46].dst, remote_addr)
-                self.assertEqual(rx[l4p].dport, dports[nbr])
-                self.assertEqual(rx[IP46].src, src_nat_addr)
-
-            self.vapi.cnat_session_purge()
-
-
-class TestCNatDHCP(VppTestCase):
-    """ CNat Translation """
-    extra_vpp_punt_config = ["cnat", "{",
-                             "session-db-buckets", "64",
-                             "session-cleanup-timeout", "0.1",
-                             "session-max-age", "1",
-                             "tcp-max-age", "1",
-                             "scanner", "off", "}"]
-
-    @classmethod
-    def setUpClass(cls):
-        super(TestCNatDHCP, cls).setUpClass()
-
-    @classmethod
-    def tearDownClass(cls):
-        super(TestCNatDHCP, cls).tearDownClass()
-
-    def tearDown(self):
-        for i in self.pg_interfaces:
-            i.admin_down()
-        super(TestCNatDHCP, self).tearDown()
-
-    def create_translation(self, vip_pg, *args, is_v6=False):
-        vip = Ep(sw_if_index=vip_pg.sw_if_index, is_v6=is_v6)
-        paths = []
-        for (src_pg, dst_pg) in args:
-            paths.append(EpTuple(
-                Ep.from_pg(src_pg, is_v6=is_v6),
-                Ep.from_pg(dst_pg, is_v6=is_v6)
-            ))
-        t1 = VppCNatTranslation(self, TCP, vip, paths)
-        t1.add_vpp_config()
-        return t1
-
-    def make_addr(self, sw_if_index, i, is_v6):
-        if is_v6:
-            return "fd01:%x::%u" % (sw_if_index, i + 1)
-        else:
-            return "172.16.%u.%u" % (sw_if_index, i)
-
-    def make_prefix(self, sw_if_index, i, is_v6):
-        if is_v6:
-            return "%s/128" % self.make_addr(sw_if_index, i, is_v6)
-        else:
-            return "%s/32" % self.make_addr(sw_if_index, i, is_v6)
-
-    def check_resolved(self, tr, vip_pg, *args, i=0, is_v6=False):
-        qt1 = tr.query_vpp_config()
-        self.assertEqual(str(qt1.vip.addr), self.make_addr(
-            vip_pg.sw_if_index, i, is_v6))
-        for (src_pg, dst_pg), path in zip(args, qt1.paths):
-            if src_pg:
-                self.assertEqual(str(path.src_ep.addr), self.make_addr(
-                    src_pg.sw_if_index, i, is_v6))
-            if dst_pg:
-                self.assertEqual(str(path.dst_ep.addr), self.make_addr(
-                    dst_pg.sw_if_index, i, is_v6))
-
-    def config_ips(self, rng, is_add=1, is_v6=False):
-        for pg, i in product(self.pg_interfaces, rng):
-            self.vapi.sw_interface_add_del_address(
-                sw_if_index=pg.sw_if_index,
-                prefix=self.make_prefix(pg.sw_if_index, i, is_v6),
-                is_add=is_add)
-
-    def test_dhcp_v4(self):
-        self.create_pg_interfaces(range(5))
-        for i in self.pg_interfaces:
-            i.admin_up()
-        pglist = (self.pg0, (self.pg1, self.pg2), (self.pg1, self.pg4))
-        t1 = self.create_translation(*pglist)
-        self.config_ips([0])
-        self.check_resolved(t1, *pglist)
-        self.config_ips([1])
-        self.config_ips([0], is_add=0)
-        self.check_resolved(t1, *pglist, i=1)
-        self.config_ips([1], is_add=0)
-        t1.remove_vpp_config()
-
-    def test_dhcp_v6(self):
-        self.create_pg_interfaces(range(5))
-        for i in self.pg_interfaces:
-            i.admin_up()
-        pglist = (self.pg0, (self.pg1, self.pg2), (self.pg1, self.pg4))
-        t1 = self.create_translation(*pglist, is_v6=True)
-        self.config_ips([0], is_v6=True)
-        self.check_resolved(t1, *pglist, is_v6=True)
-        self.config_ips([1], is_v6=True)
-        self.config_ips([0], is_add=0, is_v6=True)
-        self.check_resolved(t1, *pglist, i=1, is_v6=True)
-        self.config_ips([1], is_add=0, is_v6=True)
-        t1.remove_vpp_config()
-
-    def test_dhcp_snat(self):
-        self.create_pg_interfaces(range(1))
-        for i in self.pg_interfaces:
-            i.admin_up()
-        self.vapi.cnat_set_snat_addresses(sw_if_index=self.pg0.sw_if_index)
-        self.config_ips([0], is_v6=False)
-        self.config_ips([0], is_v6=True)
-        r = self.vapi.cnat_get_snat_addresses()
-        self.assertEqual(str(r.snat_ip4), self.make_addr(
-            self.pg0.sw_if_index, 0, False))
-        self.assertEqual(str(r.snat_ip6), self.make_addr(
-            self.pg0.sw_if_index, 0, True))
-        self.config_ips([1], is_v6=False)
-        self.config_ips([1], is_v6=True)
-        self.config_ips([0], is_add=0, is_v6=False)
-        self.config_ips([0], is_add=0, is_v6=True)
-        r = self.vapi.cnat_get_snat_addresses()
-        self.assertEqual(str(r.snat_ip4), self.make_addr(
-            self.pg0.sw_if_index, 1, False))
-        self.assertEqual(str(r.snat_ip6), self.make_addr(
-            self.pg0.sw_if_index, 1, True))
-        self.config_ips([1], is_add=0, is_v6=False)
-        self.config_ips([1], is_add=0, is_v6=True)
-        self.vapi.cnat_set_snat_addresses(sw_if_index=INVALID_INDEX)
-
-
-if __name__ == '__main__':
-    unittest.main(testRunner=VppTestRunner)